Regulation of potato meristem development by jasmonic acid in vitro |
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Authors: | Maja Ravnikar Nada Gogala |
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Institution: | 1. Institute of Biology, University of Ljubljana, A?ker?eva 12, 61 000, Ljubljana, Yugoslavia 2. Department of Biology, Biotechnical Faculty, University of Ljubljana, A?ker?eva 12, 61 000, Ljubljana, Yugoslavia
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Abstract: | The influence of jasmonic acid (JA) on differentiation of meristems of the potato,Solanum tuberosum cv. Vesna, was investigated in vitro. Meristems were grown on Murashige and Skoog (MS) medium supplemented with indole-3-acetic acid (IAA) (10 μM), kinetin (10 μM), gibberellic acid (3 μM), as modified by Bang. Addition of JA in concentrations of 0.5–10 μM increased the number of meristems that developed into buds, particularly in meristems isolated from shoots grown from tubers in the dark. JA had no noticeable effect on meristems from germs grown in light. All added concentrations of JA retarded callus and root formation. The inhibitory effect on rhizogenesis disappeared immediately after transfer of the developed buds to medium without JA. |
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